Valve



June 16,- 1953 T, A, STEHUN 2,642,256

VALVE Filed Apri-l 19. 1949 lll rrae/vsy:

Patented June 16,A 19.53

PATENT o-FFICE VALVE i Theodore A.` Stehlin, Pasadena, Calif. l

ADPICZLDIIAPH 19, SSCI'ZIN. 88,440 u i ,Y y 1 My'ilresent invention ticularly to valves which 'are 'readily ldemountable.

relates to'valves, andparoiolaims. v (C1. -251-v-39o member `are 'provided with conical cone seatseb AVOne of the principal objects oli this invention iis to .provide va'. fluid-control -valve in which the valvefs'eat may be readily removed 'and renewed.

.Another important'V object Aof this invention is to Yprovide a valve `of this class in which the valve :seat member may be readily reversed or trans-` posed for another portion 'of the valve. l f

fAn important-object also of this invention ist'o prov-ide a valve of this class in Which the valve :member 'may be easily removed fromA the 'outlet l.end `of the valve housing-by .first removing the vvalveoperating means and the valve seat member. Y 'A further important vobject of this invention is to provide simplemeans for resiliently forcing and holding the .movable valve member against its Alsti-li `further important object ofthis invention is to provide avalve of this class which as a Whole is very simple and economical of construction and operation.

VWith these and other objects Vinview, as will .appear hereinafter, `I havey devised avalve hav- 'ing certain .novel kfeatures, of construction, come binationQand.arrangement of parts and portions, 'aswill be hereinafter described -indetaiL and particularly set forth in the appended claims, reference beinghad tothe accompanying.drawi ings and to the. characters of reference thereon, which form a part .of this application, in which; Fig. 1 isa partiallongitudinal sectional and .partial elevational View of a uidfcontrol valve incorpora-ting my invention in one form;

Fig. 21s atransverse sectional view thereof, taken through 2-2 of Fig. l; v Fig. 3V is a View similar. to that shown in Fig. 1 of a modified lform of my valve; and,

Fig. 4 is a fragmentary sectional View', showingthe removable mountingof a valve rseat member of my invention in another modified form.`

The housing of Vmy Valve, shown injthe draw,- 'in'gs, is of general cylindrical form, consisting 'of housing members I and 2Yscrewa'bly secured' and 3. When the valve seat member is in the position shown, .the enlarged valve portionfdb is adapted toeng'age these'at 3b. When the valve seat member is reversed, when it is desired to renewthe-1seat,-` the valve portion ab' engages the seats3c.

The valve 'seat `member, has two peripheral gro'ovesgSd and 3e near its opposite ends for receiving-a resi-lient vsealing ring 6, Which may be in the vform of an O-ring. .Therejmay be 'only one sealing ring lIi which isl located in the forwardly 4positioned groove. When the valve seat v lmember is reversed, the sealing member 6 is end to end, th'e'forvtard end. of th'ehousingmem. Y

ber 2 being externally threaded at 2"?l and screwed Yinto a threaded portion Ia at 'the rear yenti 'of the housing member I. "The valve shown is of -a linetype valve, the outer ends of thehous'ing being connected in any `suitable manner to t'Wo sections `of a pipe line, the outer end of theho'using member I being considered as the inlet end.

The housing member I has a continuous' cylindrical bore Ib in which is removably Vfitted fan yain-- nular or sleeve-valve seat member 3, in the bore 3a of which is slida-bly mounted the sleeve portion '4a of a valve Vmein-ber 4. vThe forward end oi the valve `member engages an annular shoulder Ie extendingk 'inwardly of thebore 11.U It -is held against Ithe shoulder I, or 'substantially so, by a resilient snap retainingring '5 located at the rear end Yof the valve lseat member. The retaining .ring 5 is located Within an annular `groove Id `in the housing member I. i Y Cfiche fortvard. .and, 'rear ends of the valve v,seat

located Within the :groove 3e.l

Within the Wall of the' bore ofthe valve seat member is an annular groove 3f forreceiving a sealing ring 1., which is preferably in the form of an O-ring. This Of-frngfl is positioned against the moving wall fof the sleeve vportion of the valve member. .It will be noted that the sealing jQring is at all times positioned behind the radiating ports 4c at -t-he forward end of the bore of the sleeve .portion` Vof 'the valvemember, these ports being located immediately behindv the. enlarged valve portion 4b.

, The rear-end 'of the valve member extends slid-A -ably with-in the `forward portion of the Ahousing member 2. It is sealed with respect to such housing member by means of a sealing O-r-ing 8, which -ijs located within an annular groove 2b in the bore of thehousing member 2, as shown innig-14 i fi-hegvalve member 4 may be unseated, 'and shifted generally inA an axial direction, by means of a handle 9 secured to and extending radially from a collar I0 encircling the peripheral pjortion of the housing. This collar `Il! has a valveshifting pin or pins I I which extends radially Y inwardlythrough afhelical slot Ie. The inner. end of this .pin extends into a recess I2a in 'a valveshifting collar I2,-which is located and'ret'ained 'between two snap rings I3 fand k,I4 located inr spaced annular grooves in the sleeve portion of sitioned at an angle, `and resiliently forces thev collar against the ring I3.v With this construction .the valve-'actuating' collar I2 is prevented from eifecting a rigid engagement andl binding between the valve member 'arid its seat, but 'alvlovvs merely a yieldable and resilient engagement ofthe two. f

I-nY themodification shown in Fig. 3, separatel members, namely, 2 I

Y and 22, may serve separately as valve seat members. They are constructed identically but have only-two grooves 'for sealing members -6 and 1.

these two 'groovesfin the member 2|, namely,

grooves ZI a and 2lb cor# l responding With Ythegro'oves.3d and 3ffin-fthevalve seat member, shown vin Fig. 1. The valve seat member 2i is also held in position by a snap ring 5. In this modiiied form the valve seat member 22 is loosely positioned within a bore 23a in the rear housing member 23, the bore 23E- shoulder in the passage, a valve seat member removably positioned in the passage against the being of the same diameter of the bore Ib. In

this modified construction, the rear valve seat member, which is the member 22 in this instance,

is also provided with sealing rings 6 and 1 whichl seal the space between the exterior portion ofhousing member 2 is rst unscrewed. The other members may be removed in the following order, of

namely: ring '(4, pin il, valve-actuating member I2, ring I3, ring 5, and valve seat member 3. In the modied form shown in Fig. 3, they may be removed in the following order, namely: Vrear valve-housing member 23, valve seat member 22, l

ring I4, pin Il, member 2l.

In the modiied structure shown in Fig. 4, an extremely simple valve seat member 3l is employed. This member is a relatively short sleeve and has cone seat portions`3lVL and Sib at the opposite ends of its bore 3P. This valver seat member has only one peripheral groove 31d for receiving a sealing ring 32.

r-ing I3, ring 5, and valve seat The valve seat sleeve or member 43l is alsoremovably held in place Y against a shoulder Ic by means of a snap ring 5. In this instance also, the valve seat member 3l may be reversed so that either valve seat may be used. i

In `this instance, the inner sealing ring is omitted so that there is no sealing with respect to the valve member when the latter is open.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modications will occur to aperson skilled in the art.

I claim:

, 1, In a valve of the class described, a housing having a cylindrical 'passage therethrough, a shoulder in the passage, a valve seat member removably positioned in the passage against the shoulder, a retaining ring for removably securing the valve seat member against'said shoulder, the valve seat member having an annularperipheral groove, a sealing ring positioned in the groove against the wall of the passage, a sleeve valve member reciprocally mounted within the passage and adapted to engage the valve seat member, the sleeve of the valve member vbeing axially slidable through the .bore of the valve seat member, the wall of the bore of the valve seat member having an annular groove, a sealing member in the latter groove, a valve-member reciprocating collar `removablyitted around and intermediate the ends of the rear portion of the valve member, the valve member having a shoulder for limiting the forward position of the collar, a rev shoulder, a retaining ring for removably securing the valve seat member against said shoulder, the valve seat member having an annular peripheral groove, a sealing ring positioned in the groove against the wall of the passage, a sleeve valve memberreciprocally mounted within the passage and adapted to engage the valve seat member, the sleeve of the valve member being axially slidable through the bore of the valve seat member and provided with a radial port behind the head communicating with the interior of the sleeve, the wall of the bore of the valve seat member having an annular groove, a sealing member in the latter groove, a valve-member reciprocating collar removably tted around and intermediate the ends of the rear portion of the valve member, the valve member having a shoulder for limiting the forward position of the collar, 'a resilient snap ring engaging the rear side of the collar, the latter ring being removably fitted into groove means in the valve member, for holding the collar against the shoulder of the valve member, and meansy operable through the housing in the collar for axially shifting the valve member.

3. Ina valve of the class described. a housing having a cylindrical passage therethrough, a valve seat member in the passage, a sleeve valve member reciprocally mounted within the passage and adapted to engage the valve seat member, the sleeve of the valve memberl being axially slidable through the bore of the valve seat member, the wall of the bore of the valve seat member having an annular goove, a sealing member in the latter groove, a valve-member reciprocating collar removably tted around and intermediate the ends of the rear portion of the valve member, the valve member having a shoulder for limiting the forward position of the collar, a resilient snap ring engaging the rear side of the collar, the latter ring being removably fitted into groove means in the valve member, and being resilient with respect to the longitudinal axis of the valve member for holding the collar against the shoulder of the valve member, and means operable through the housing in the collar for axially shifting the valve member.

4. In a valve of the class described, a housing having a cylindrical passage therethrough, a shoulder in the passage, a valve seat member removably positioned in the passage against the shoulder, ay retaining ring for removably securing the valve seat member against said shoulder, the valve seat member having an annular peripheral groove, a sealing ring positioned in the groove against the wall of the passage, a sleeve valve member reciprocally mounted within the passage and adapted to engage the valve seat member, the sleeve of the valve member being axially slidable through the bore of the valve seat member, the wall of the bore of the valve seat member having an annular groove, a sealing member in the latter groove, a valve-member reciprocating collar removably tted around and intermediate the ends of the rear portion of the valve member, the valve member having a shoulder for limiting the forward position of the collar, a resilient snap ring engaging the rear side of the collar, the latter ring being removably iitted into groove means in the valve member, and being resilient with respect to the longitudinal axis of the valve member for holding the collar against the shoulder of the valve member,

and means operable through the housing in the collar for axially shifting the valve member.

5. In a valve of the class described, a heus ing having a cylindrical passage therethrough, a shoulder in the passage, a valve seat member. removably positioned in the passage against the shoulder, a retaining ring for removably securing the valve seat member against said shoulder, the valve seat member having an annular peripheral groove, a sealing ring positioned in the groove against the Wall of the passage, a sleeve valve member reciprocally mounted Within the passage and adapted to engage the valve seat member, the sleeve of the valve member being axially slidable through the bore of the valve seat member, the Wall of the bore of the valve seat member having an annular groove, a sealing member in the latter groove, a valve-member reciprocating collar removably fitted around and intermediate the ends-of the rear portion of the valve member, the valve member having a shoulder for limiting the forward position of the collar, a resilient snap ring engaging the rear side of the collar, the latter ring being removably fitted into groove means in the valve member, for holding the collar against the shoulder of the valve member, and means operable through the housing in the collar for axially shifting the valve member, said snap ring being removable for removing the collar and valve seat member through the rear end of the housing. y

6. In a valve of the class described, a housing having a cylindrical passage therethrough, a shoulder in the passage, a valve seat member removably positioned in the passage against the shoulder, a retaining ring for removably securing the valve seat member against said shoulder, the valve seat member having an annular peripheral groove, a sealing ring positioned in the groove against the Wall of the passage, a sleeve valve member reciprocally mounted Within the passage and adapted to engage the valve seat member, the sleeve of the valve member being axially-slidable through the boreof the valve seat member,

.the wall of the bore of the valve seat member having an annular groove, a sealing member in the latter groove, a peripherally-grooved, valvemember reciprocatingl collar removably fitted around and intermediate the ends of the rear portion of the valve member, resilientA snap rings engaging the forward and rear sides of the collar, the foremost of the latter rings serving as a shoulder and the rearmost of the vlatter rings being removably fitted into groove means in the valve member, for holding the collar against the shoulder of the valve member, and means operable through the housing in the collar for axiall shifting the valve member. f

7. In a valve of the class described, a housing having a cylindrical passage therethrough, a valve seat member in the passage, a sleeve valve member reciprocally mounted within the passage and adapted to engage the valve seat member, the sleeve of the valve member being -axially slidable through the bore of the valve seat member, the wall of the bore of the valve seat member having an annular groove, a sealing member in the latter groove, a peripherally-grooved, valve-member reciprocating collar removably fitted around and intermediate the ends of the rear portion of the valve member, resilient snap rings engaging the forward and rear sides of the collar, the foremost of the latter rings serving as a shoulder and the rearmost of the latter rings being removably fitted into groove means in the valve member,

and being resilient With respect to the longitudinal axis of the valve member for holding the collar against the shoulder of the valve member. and means operable through the housing in the collar for axially shifting the v-alve member,

8. In a valve of the class described, a housing having a cylindrical passage therethrough, a shoulder in the passage, a valve seat member removably positioned in the passage against the shoulder, a retaining ring for removably securing the valve seat member against said shoulder, the valve seat member having an annular peripheral groove, a sealing ring'positioned in the groove against the Wall of the passage, a sleeve valve member reciprocally mounted within the passage and adapted to engage the valve seat member,

the sleeve of the valve member being axially slidable through the bore of the valve seat member, the wall ofthe bore of the Valve seat member having an annular groove, a sealing member in the latter groove, a peripherally grooved, valvemember reciprocating collar removably tted around and intermediate the ends of the rear portion of the valve member, resilient snap rings engaging the forward and rear sides of the collar, the foremost 'of the latter rings serving as a shoulder and the rearmost o-f the latter rings being removably tted into groove means in the valve member, and-being resilient with respect to the longitudinal axis of the valve member for holding the collar against the shoulder of the valve member, and means operable through the housing in thercollar for axially shifting the valve member.

9. In a valve of the class described, a housing having a cylindrical passage therethrough, a shoulder in the passage, a valve seat member removably positioned in the passage against the shoulder, a retaining ring for removably securing the valve seat member against said shoulder, the valve seat member having an annular peripheral groove, a sealing ring positioned in the groove against the wall of the passage, a sleeve valve member reciprocally mounted Within the passage and adapted to engage the valve seat member, the sleeve of the valve member being axially slidable through the bore of the valve seat member, the wall of the bore of the valve seat memberr having an lannular groove, a sealing member in the latter groove, a peripherallygrooved, valve-member reciprocating collar reymovably fitted around and intermediate the ends of the rear portion of the valve member, resilient snap rings engaging the forward and rear sides of the collar, the foremost of the latter rings serving as a shoulder and, the rearmost of the latter rings ybeing removably fitted into groove means in the valve member, for holding the collar against the shoulder of the valve member, and means operable through the housing in the collar for axially shifting the valve member, said snap ring being removable for removing the collar and valve seat member through the rear end of the housing.

vTHEODORE A. STEHLIN.

References Cited in the file of this patent UNITED STATES PATENTS Number Y Name Date 937,513 Deiller Oct. 19, 1909 1,740,669 Shaff Dec. 24, 1929 2,182,278 Brauer 'r Dec. 5, 1939 2,413,869 Hamer Jan. 7, 1947 2,424,331 Rose July 22, 1947 

